I THINK C BECAUSE IF IT IS A GLASS BOX HOW DID A CACTUS GET IN AND NOTHING CAN GET IN OR OUT OF THE BOX SO THERE IS NO CACTUS IN THE BOX
        
                    
             
        
        
        
Matt Biondi..? 
(I don’t know if it’s right, sorry if it is wrong) 
:)
        
             
        
        
        
Answer:
Because they would naturally dye the test strips in the colors violet and red, regardless of their pH values 
(would really appreciate the brainliest)
 
        
             
        
        
        
Explanation:
At the instant of release there is no force but an acceleration of a, this means the ball is falling freely under the force of gravity. Then the acceleration would be due to force of gravity and acceleration a = g =9.81 m/s^2.
g= acceleration due to gravity
 
 
        
             
        
        
        
Answer: 0.5N
Explanation: if the system is at equilibrium, sum of the torque will be equal to zero. 
But if they are not in equilibrium. 
U will find the difference in the two torque 
find the attached file for solution